Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Graphs showing the mean and SE of normalized facet strain at L3-L4 (A), L4-L5 (B), and L5-S1 (C) facets after arthroplasty with Activ L at L4-L5 under physiologic compressive follower preload. For the abbreviation, bending : right/left lateral bending; rotation : right/left axial rotation. *p<0.05 versus intact.
